28737760

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4177}}^1$

素因数の和:4235

約数の個数: 48

約数和(自身を含む): 69488496

約数和(自身を除く): 40750736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4177, 6880, 8354, 16708, 20885, 33416, 41770, 66832, 83540, 133664, 167080, 179611, 334160, 359222, 668320, 718444, 898055, 1436888, 1796110, 2873776, 3592220, 5747552, 7184440, 14368880, 28737760]

約数ペア:

[(1, 28737760), (2, 14368880), (4, 7184440), (5, 5747552), (8, 3592220), (10, 2873776), (16, 1796110), (20, 1436888), (32, 898055), (40, 718444), (43, 668320), (80, 359222), (86, 334160), (160, 179611), (172, 167080), (215, 133664), (344, 83540), (430, 66832), (688, 41770), (860, 33416), (1376, 20885), (1720, 16708), (3440, 8354), (4177, 6880)]